GC4701 - GC4750 CONTROL DEVICES - LIMITERS DIODES (R) TM RoHS COMPLIANT K EY F EAT U R ES DE S C R I P T I O N This series of diodes meets RoHS requirements per EU Directive 2002/95/EC. Available as packaged devices or as chips for hybrid applications Low Loss Suitable for applications to 18Ghz Excellent flat leakage performance Low 1 dB compression point Gold Doped Diodes for Fast Turn On www.MICROSEMI.com The GC4700 series diodes are specially processed PIN diodes designed for use in passive or active limiters at frequencies through Ku band. Thirteen categories of devices are offered for flexibility in design of low, medium and high power limiters. Low VB limiters have thinner I regions for faster turn-on time and better flat leakage. Microsemi also manufactures "gold doped" limiters for fastest turn on time. In addition, we manufacture high voltage dual junction limiters for superior peak and CW power handling. 1 RoHS Compliant APPLICATIONS 1 A diode limiter is a power-sensitive variable attenuator that uses the non-linear properties of the diode to provide an impedance mismatch when sufficient amounts of RF power are incident on the device. The output power is reduced to a level that will not overdrive a receiver, burn out a mixer, etc. For varying input power levels in excess of the diode's threshold level, the limiter's output power tends to remain constant. A passive limiter is one in which the limiter diodes are "turned on" by the RF signal itself. An active limiter is one in which the limiter diodes are "turned on" primarily by an external bias current typically supplied by a Schottky detector diode which senses the incident signal. Since limiter diodes are not designed to dissipate large amounts of power, the limiter must reflect or divert the excess incident power back to the source or to another load (i.e. via a circulator, hybrid coupler, etc.). Limiter diodes may be used in wave guides, coax, microstrip, stripline or other media. Single or cascaded devices may be used, depending on power levels. Most or our devices are supplied with Gold plated terminations. Other terminal finishes are available on request. Consult factory for details. APPLICATIONS/BENEFITS Receiver protection circuits Amplifier Protection ABSOLUTE MAXIMUM RATINGS AT 25 C (UNLESS OTHERWISE SPECIFIED) Symbol Value Unit Maximum Leakage Current @80% of minimum Rated Vb Ir 0.5 uA Operating Temperature T op -5 5 to +150 C GC4701 - GC4750 Rating Storage Temperature T stg -6 5 to +150 C IMPORTANT: For the most current data, consult our website: www.MICROSEMI.com These devices are ESD sensitive and must be handled using ESD precautions. Copyright 2006 Rev. A, 2007-08-28 Microsemi Microwave Products 75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748 Page 1 GC4701 - GC4750 CONTROL DEVICES - LIMITERS DIODES (R) TM RoHS COMPLIANT P1 P2 (Typ) (Max) THERMAL RESISTANCE THERMAL RESISTANCE (ns) ( C/W) ( C/W) I R=10A (Volts) @0V (pF) @-6V (pF) @-50V (pF) @10 mA () GC4701-00 20 0.20 0.15 -- 1.5 5 20 100 GC4702-00 20 0.50 0.30 -- 1.2 10 12 80 GC4711-00 45 0.20 0.15 -- 1.5 10 15 80 GC4712-00 45 0.50 0.30 -- 1.2 15 10 60 GC4713-00 45 0.70 0.50 -- 1.0 20 6 40 GC4721-00 120 0.20 0.15 -- 1.5 50 1.2 40 GC4722-00 120 0.60 0.30 -- 1.0 50 0.5 20 GC4723-00 120 0.80 0.50 -- 0.5 100 0.3 15 GC4731-00 15 0.12 0.10 -- 2.0 5 30 120 GC4732-00 15 0.20 0.15 -- 1.5 5 20 80 GC4741-00 30 0.12 0.10 -- 2.0 7 20 100 GC4742-00 30 0.20 0.15 -- 1.5 7 15 70 3.0@50mA 300 4 10 GC4750-002 (3) 250 -- -- 0.25 (4) www.MICROSEMI.com CHIP ELECTRICAL PARAMETERS @ 25C (unless otherwise specified) Vb C j0 Cj-6 Cj-50 Rs TL Model # (Min) (Typ) (Max) (Max) (Typ) (Typ) TYPICAL RF PERFORMANCE @ 25 C (unless otherwise specified) TYPICAL LEAKAGE TYPICAL THRESHOLD TYPICAL INS. LOSS MAXIMUM CW POWER (dBm) (dBm) IL (dB) (Watts) +22 +10 0.1 2 GC4701 20 PEAK POWER P IN @ 1 S (dBm) +50 GC4702 20 +53 +24 +10 0.2 3 GC4711 45 +53 +27 +15 0.1 3 GC4712 45 +56 +29 +15 0.2 4 GC4713 45 +59 +31 +15 0.2 5 GC4721 120 +60 +39 +20 0.1 5 GC4722 120 +63 +41 +20 0.2 10 GC4723 120 +66 +44 +20 0.2 15 GC4731 15 +47 +19 +7 0.1 2 GC4732 15 +50 +22 +4 0.1 3 GC4741 30 +47 +24 +12 0.1 3 GC4742 30 +50 +27 +12 0.1 4 +44 +31 0.2 50 GC4750 250 +56 @10uS Notes 1) Pulse length 1 microsecond. 2) As measured in style 30 package 3) Available in 002 style or 115-2 package styles 4) CJ for 2 junctions in parallel @ VR =50V Copyright 2006 Rev. A, 2007-08-28 P out Microsemi Microwave Products 75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748 ELECTRICALS Model Number Vb (Min) Page 2 GC4701 - GC4750 CONTROL DEVICES - LIMITERS DIODES (R) TM RoHS COMPLIANT PO W ER L E AK AG E P ERF ORM ANCE T R ANSF ER CHAR ACT ERIST ICS www.MICROSEMI.com +50 0 dB 15 Micron 10 dB 4 Micron +40 2 Micron Power Out (mw) Pout 20 dB 30 dB 1 dB Compression Point +30 +20 Low Level Ins. Loss +10 +0 +0 +10 +20 +30 +40 +50 +60 +70 Peak Input Power (dBm) Linear Region Compression Hard Limiting Burnout Pin Typical Power Leakage vs I Region Thickness Typical Limiter Transfer Characteristics SERIES RESIST ANCE HIGH PO W ER DU AL L IM I T ER D ESIG N Typical R S Vs I F Curve SCHOTTKY DRIVER (GC9700) 1000 GC4750 100 DC BLOCK RS() DC BLOCK GC4750 1 0.1 0.001 GC4712 RF IN 50 10 RF OUT 50 / 4 Spacing 0.01 0.1 1 10 100 2 Stage Limiter with Schottky Driver IF (mA) GRA PHS Copyright 2006 Rev. A, 2007-08-28 Microsemi Microwave Products 75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748 Page 3 GC4701 - GC4750 (R) TM CONTROL DEVICES - LIMITERS DIODES RoHS COMPLIANT PAC K AG E ST Y L E 00 DU AL C HIP STYLE 0 02 www.MICROSEMI.com Notes: Notes: - - Order as GC47xx - 002 Order as GC47xx - 00 P AC K AG E SY L E 30 P ACK AG E ST Y L E 115 - 2 Notes: - - Order as GC47xx - 30 M ECH ANIC AL Notes: Order as GC47xx - 115-2 O T H E R P AC K AG E S T Y L E S AV AI L AB L E O N R E Q U E ST CO NSULT F ACT O RY Copyright 2006 Rev. A, 2007-08-28 Microsemi Microwave Products 75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748 Page 4 GC4701 - GC4750 (R) TM CONTROL DEVICES - LIMITERS DIODES RoHS COMPLIANT P ACK AG E ST Y L E 3 5 P ACK AG E SY L E 4 2 www.MICROSEMI.com Notes: - Notes: Order as GC47xx - 35 - Order as GC47xx - 42 OT HER P ACK AG E S T YL ES AV AIL AB L E ON R EQU EST CO NSULT F ACT O RY M ECH ANIC AL Copyright 2006 Rev. A, 2007-08-28 Microsemi Microwave Products 75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748 Page 5 GC4701 - GC4750 TM CONTROL DEVICES - LIMITERS DIODES (R) RoHS COMPLIANT NOTES www.MICROSEMI.com N OTES Copyright 2006 Rev. A, 2007-08-28 Microsemi Microwave Products 75 Technology Drive, Lowell, MA. 01851, 978-442-5600, Fax: 978-937-3748 Page 6